Show 100 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Nicholl, Robert S*" or (type exact bookEditor and editor="Nicholl, Robert S*") Add to list Journal Article A1 Ichnofacies of the Stairway Sandstone fish-fossil beds (Middle Ordovician, Northern Territory, Australia) Neil Davies (UGent) , Ivan J Sansom, Robert S Nicholl and Alex Ritchie (2011) ALCHERINGA. 35(4). p.553-569